import java.awt.*;
import javax.swing.JPanel;
   
public class Shapes extends JPanel 
	{
		
	public void paintComponent(Graphics g)
	    {
	    	super.paintComponent(g);
	    	
	    	for(int i=0;i<20;i++)
	    	{
	    	   g.drawOval(100-i*5, 100-i*5,20+i*10,20+i*10);
	    	    
	    	}//end for
	    }//end method paintComponent
	}//end Shapes